Isoetes bolanderi is a species of quillwort , a type of 
lycopod .  Its common name is Bolander's quillwort.  This is a "primitive" aquatic
Kaynak: Isoetes bolanderiIsoetes howellii is a species of quillwort , a type of 
lycopod .  Its common name is Howell's quillwort.  This is a "primitive" aquatic
Kaynak: Isoetes howelliiIsoetes nuttallii is a species of quillwort , a type of 
lycopod .  Its common name is Nuttall's quillwort.  This is a "primitive" plant
Kaynak: Isoetes nuttalliiHaplostigma is a genus of arborescent 
lycopod , found only in the early part of the Middle Devonian  References : Category:Lycopodiophyta
Kaynak: HaplostigmaHuperzia mannii is a species of 
lycopod  plant known by the common names Mann's clubmoss and wawae`iole.  It is endemic  to Hawaii , where
Kaynak: Huperzia manniiThe evolution of plant s has resulted in increasing levels of complexity , from the earliest algal mat s, through bryophyte s, 
lycopod s,
Kaynak: Evolutionary history of plantsSelaginella : the spikemosses, included within the 
lycopod , or clubmoss group. Marsileaceae : the water-clovers, Marsilea , Pilularia , and
Kaynak: MegasporeHe collected fern s, 
lycopod s, and nonvascular plants  in North America , Jamaica  and New Zealand .  His specimens are housed in the
Kaynak: Willard Nelson CluteIt probably grew on the banks of rivers  Spongiophyton has been mistakenly interpreted as tree resin  and 
lycopod  cuticle and was later
Kaynak: Spongiophytondefinitively identified embolomere from the Joggins Fossil Cliffs and is the largest tetrapod to have been found preserved in 
lycopod  tree stumps
Kaynak: Calligenethlonsediments in Victoria , named the Baragwanathia Assemblage for its most prominent element, the simple vascular plant  the 
lycopod  Baragwanathia.
Kaynak: Natural history of AustraliaBy the end of the Silurian much more complex vascular plants, the zosterophylls , had diversified and primitive 
lycopod s, such as
Kaynak: Timeline of plant evolutionDuring this time he studied tetrapod remains from the Pennsylvanian 
lycopod “tree stumps” at Joggins, Nova Scotia  (a variety of
Kaynak: Robert L. Carroll